Small Drilled Universal Carboy Stopper
Small Drilled Universal Carboy Stopper

Small Drilled Universal Carboy Stopper

$1.59
Universal silicone carboy stopper with a drilled airlock opening for 3 to 6.5 gallon glass fermenters.
  • Universal tapered carboy stopper
  • Pre-drilled for fermentation airlocks
  • Compatible with 3 to 6.5 gallon glass carboys
  • BPA-free silicone construction
  • Lip helps prevent stopper from falling into fermenter
  • Reusable homebrewing accessory

Clean and sanitize the stopper before use.

Insert a compatible fermentation airlock into the drilled opening.

Press the stopper securely into the opening of a compatible glass carboy.

Ensure the stopper is firmly seated to create a proper fermentation seal.

Monitor airlock activity throughout fermentation.

Clean thoroughly after use and allow to dry before storage.

  • One Small Drilled Universal Carboy Stopper

A drilled carboy stopper is used to seal fermentation vessels while allowing CO2 produced during fermentation to vent safely through an airlock.

This universal stopper is well suited for:

  • Beer fermentation
  • Wine fermentation
  • Mead fermentation
  • Hard cider fermentation
  • Secondary fermentation setups
  • Aging and conditioning vessels

The tapered universal design helps create a snug fit across several fermenter sizes commonly used in homebrewing.

This universal stopper can also be used for:

  • Replacing worn fermenter stoppers
  • Airlock-based fermentation setups
  • Fermentation vessel upgrades
  • Homebrew equipment replacements

The integrated lip helps prevent the stopper from accidentally falling into the fermenter during installation or removal.

  • Material: BPA-free silicone
  • Style: Universal tapered stopper
  • Airlock Opening: Pre-drilled
  • Recommended Fermenter Sizes:
    -3 gallon glass carboys
    -5 gallon glass carboys
    -6 gallon glass carboys
    -6.5 gallon glass carboys
  • Not Recommended For:
    -1 gallon carboys
    -The Catalyst Fermentation System
  • Reusable: Yes
Small Drilled Universal Carboy Stopper
$1.59

Frequently Asked Questions

It is used to seal fermenters while allowing carbon dioxide to vent through an airlock during fermentation.

It is recommended for 3 gallon, 5 gallon, 6 gallon, and 6.5 gallon glass carboys.

Yes. The stopper features a pre-drilled opening for compatible fermentation airlocks.

It is made from BPA-free silicone.

No. It is not recommended for 1 gallon carboys.

The tapered shape helps create a snug fit across multiple carboy sizes and reduces the chance of slipping during fermentation.


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